@BOOK\{IMM2006-05043,
    author       = "P. Blackburn and T. Bolander and T. Braüner and V. de Paiva and J. Villadsen",
    title        = "Proceedings of the International Workshop on Hybrid Logic",
    year         = "2006",
    pages        = "138",
    volume       = "",
    number       = "",
    series       = "",
    publisher    = "",
    address      = "",
    edition      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/5043-full.html"
}